Instructables

120 volt LED traffic signal light made to run on 12VAC ?

Is there any way to take a 120 volt LED traffic signal bulb apart and convert it to work on 12 VAC we are using this around a lake and don't want the chance of electrocuting someone

Atul0096 months ago

Your question is a little incomplete then also to help i would say if it's 120 volts DC you cant directly drive it by AC.You'll need some sort of rectifier.This is how far I can imagine if you want a step by step accurate example you should rip it apart and post come images.

Atul0096 months ago

Your question is a little incomplete then also to help i would say if it's 120 volts DC you cant directly drive it by AC.You'll need some sort of rectifier.This is how far I can imagine if you want a step by step accurate example you should rip it apart and post come images.

dbug10 (author) 6 months ago

I really don't know squat about electronics but not bragging lol I am extremely mechanically inclined and can follow directions no problem so if someone tells me what and how to do it there should be no problem I will take one of my spare bulbs apart to be able to show the wiring and the back of the board the bulbs are on and post pics of it

iceng6 months ago

Change the bulbs with 12V versions.

Some LED versions have the ability to run on 24VDC just change drivers.

Finally if you know electronics you can re-purpose the low cost LED lights.

Submit a schematic and we can show you how to cut traces and add resistors.

mpilchfamily6 months ago

It depends on the light really. Likely the LEDs in side are wired in series so it requires the full 120VAC. If that is the case you'll need to know what kind of LEDs are in there so you can figure out a good series/parallel configuration that will allow it to run at a lower voltage. It would probably be easier to just build your own light from scratch.

rickharris6 months ago

use an inverter OR change the light bulbs for LEDS and build your own controller with a microprocessor.